The job was canceled because "_11___8_3" failed.

Your requirements could not be resolved to an installable set of packages. Problem 1 - orchestra/testbench[v3.5.0, ..., v3.5.2] require laravel/framework ~5.5.0 -> found laravel/framework[v5.5.0, ..., v5.5.50] but it conflicts with your root composer.json require (11.*). - orchestra/testbench v3.5.3 requires laravel/framework ~5.5.20 -> found laravel/framework[v5.5.20, ..., v5.5.50] but it conflicts with your root composer.json require (11.*). - orchestra/testbench[v3.5.4, ..., v3.5.6] require laravel/framework ~5.5.34 -> found laravel/framework[v5.5.34, ..., v5.5.50] but it conflicts with your root composer.json require (11.*). - orchestra/testbench v3.6.0 requires laravel/framework ~5.6.0 -> found laravel/framework[v5.6.0, ..., v5.6.40] but it conflicts with your root composer.json require (11.*). - orchestra/testbench[v3.6.1, ..., v3.6.2] require laravel/framework ~5.6.4 -> found laravel/framework[v5.6.4, ..., v5.6.40] but it conflicts with your root composer.json require (11.*). - orchestra/testbench v3.6.3 requires laravel/framework ~5.6.5 -> found laravel/framework[v5.6.5, ..., v5.6.40] but it conflicts with your root composer.json require (11.*). - orchestra/testbench[v3.6.4, ..., v3.6.5] require laravel/framework ~5.6.13 -> found laravel/framework[v5.6.13, ..., v5.6.40] but it conflicts with your root composer.json require (11.*). - orchestra/testbench[v3.6.6, ..., v3.6.7] require laravel/framework ~5.6.34 -> found laravel/framework[v5.6.34, ..., v5.6.40] but it conflicts with your root composer.json require (11.*). - orchestra/testbench v3.7.0 requires laravel/framework ~5.7.0 -> found laravel/framework[v5.7.0, ..., v5.7.29] but it conflicts with your root composer.json require (11.*). - orchestra/testbench[v3.7.1, ..., v3.7.5] require laravel/framework ~5.7.4 -> found laravel/framework[v5.7.4, ..., v5.7.29] but it conflicts with your root composer.json require (11.*). - orchestra/testbench v3.7.6 requires laravel/framework ~5.7.14 -> found laravel/framework[v5.7.14, ..., v5.7.29] but it conflicts with your root composer.json require (11.*). - orchestra/testbench[v3.7.7, ..., v3.7.8] require laravel/framework ~5.7.28 -> found laravel/framework[v5.7.28, v5.7.29] but it conflicts with your root composer.json require (11.*). - orchestra/testbench v3.8.0 requires laravel/framework ~5.8.0 -> found laravel/framework[v5.8.0, ..., v5.8.38] but it conflicts with your root composer.json require (11.*). - orchestra/testbench v3.8.1 requires laravel/framework ~5.8.2 -> found laravel/framework[v5.8.2, ..., v5.8.38] but it conflicts with your root composer.json require (11.*). - orchestra/testbench v3.8.2 requires laravel/framework ~5.8.3 -> found laravel/framework[v5.8.3, ..., v5.8.38] but it conflicts with your root composer.json require (11.*). - orchestra/testbench[v3.8.3, ..., v3.8.4] require laravel/framework ~5.8.19 -> found laravel/framework[v5.8.19, ..., v5.8.38] but it conflicts with your root composer.json require (11.*). - orchestra/testbench[v3.8.5, ..., v3.8.6] require laravel/framework ~5.8.35 -> found laravel/framework[v5.8.35, v5.8.36, v5.8.37, v5.8.38] but it conflicts with your root composer.json require (11.*). - orchestra/testbench[v3.9.0, ..., v3.9.1, v4.0.0, ..., v4.0.1] require laravel/framework ^6.0 -> found laravel/framework[v6.0.0, ..., v6.20.44] but it conflicts with your root composer.json require (11.*). - orchestra/testbench[v3.9.2, v4.2.0] require laravel/framework ^6.2 -> found laravel/framework[v6.2.0, ..., v6.20.44] but it conflicts with your root composer.json require (11.*). - orchestra/testbench[v3.9.3, ..., v3.9.4] require laravel/framework ^6.18.0 -> found laravel/framework[v6.18.0, ..., v6.20.44] but it conflicts with your root composer.json require (11.*). - orchestra/testbench v4.1.0 requires laravel/framework ^6.1 -> found laravel/framework[v6.1.0, ..., v6.20.44] but it conflicts with your root composer.json require (11.*). - orchestra/testbench[v4.3.0, ..., v4.4.1] require laravel/framework ^